Half of the crew lie unconscious on the beach. They had been rowing in smaller boats towards the islands to check if it was safe to come ashore. The shore seems safe, it is what is lurking between the main boat and the shore that's the trouble. One of your party rolled a very high perception check as they see the top of a fin on a humanoid shape which appears to be trying to break the hull.... What do you do?

Here is a free map digital asset* for you to use in your games. Since I was so inspired by the KYPW: Sahuagin video, I decided to make a map which would allow you to utilize these fiendish creatures. Enjoy and let us know the stories of how you've used them.